A Block Bi-Diagonalization-Based Pre-Coding for Indoor Multiple-Input-Multiple-Output-Visible Light Communication System

Prabu Subramani, Ganesh Babu Rajendran, Jewel Sengupta, Rocío Pérez de Prado and Parameshachari Bidare Divakarachari
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Prabu Subramani: Department of Electronics and Communication Engineering, Mahendra Institute of Technology, Mahendhirapuri, Mallasamudram West, Tiruchengode, Tamil Nadu 637503, India
Ganesh Babu Rajendran: Department of Electronics and Communication Engineering, SRM TRP Engineering College, Mannachanallur, Taluk, Irungalur, Tamil Nadu 621105, India
Jewel Sengupta: Department of Computer Science, Visvesvaraya Technological University, Machhe, Belgaum, Karnataka 590018, India
Rocío Pérez de Prado: Telecommunication Engineering Department, University of Jaén, 23071 Jaén, Spain
Parameshachari Bidare Divakarachari: Department of Telecommunication Engineering, GSSS Institute of Engineering and Technology for Women, Mysuru, Karnataka 570016, India

Energies, 2020, vol. 13, issue 13, 1-16

Abstract: Visible Light Communication (VLC) is a promising field in optical wireless communications, which uses the illumination infrastructure for data transmission. The important features of VLC are electromagnetic interference-free, license-free, etc. Additionally, Multiple-Input-Multiple-Output (MIMO) techniques are enabled in the VLC for enhancing the limited modulation bandwidth by its spectral efficiency. The data transmission through the MIMO-VLC system is corrupted by different interferences, namely thermal noise, shot noise and phase noise, which are caused by the traditional fluorescent light. In this paper, an effective precoding technique, namely Block Bi-Diagonalization (BBD), is enabled to mitigate the interference occurring in the indoor MIMO-VLC communications. Besides, a Quadrature Amplitude Modulation (QAM) is used to modulate the signal before transmission. Here, the indoor MIMO-VLC system is developed to analyze the communication performance under noise constraints. The performance of the proposed system is analyzed in terms of Bit Error Rate (BER) and throughput. Furthermore, the performances are compared with three different existing methods such as OAP, FBM and NRZ-OOK-LOS. The BER value of the proposed system of scenario 1 is 0.0501 at 10 dB, which is less than that of the FBM technique.

Keywords: bit error rate; block bi-diagonalization-based precoding; multiple-input-multiple-output; shot noise; thermal noise; phase noise; visible light communication (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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